Txawm hais tias nws yog tus nqi hloov pauv, lossis qhov yuav tsum tau ua kom zoo dua ntawm cov hlau nws tus kheej, lossis los daws qhov overcapacity, cov txheej txheem tswj hwm ntawm steel mills yuav maj mam sib zog.Nws yog kwv yees tias tag nrho cov nqi sib txawv ntawm domestic tuab phaj lag luam yog ruaj khov thiab muaj zog.Lead phaj thov yog qhov ruaj khov, los ntawm cov khoom muag txhua xyoo hloov pauv tuaj yeem pom.Cov hlau lead thiab cov hlau lead siv tau dav siv hauv kev lag luam acid, roj teeb, cable sheathing thiab metallurgical kev lag luam khoom siv, ua lub luag haujlwm tiv thaiv corrosion;Lead phaj nqi kev paub tuaj yeem nqus cov hluav taws xob hluav taws xob, tuaj yeem siv los ua kev lag luam atomic zog, hluav taws xob nuclear, X-ray thiab R - cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob tiv thaiv kev kho mob;Lead phaj nqe kev nkag siab zoo tuaj yeem siv rau cov cuab yeej siv kho suab nrov.Cov hmoov txhuas kuj tuaj yeem tov nrog antimony, tin, thiab bismuth los ua ntau yam alloys;Siv nyob rau hauv ntau yam teb.
1. Rau cov welds uas tsis tuaj yeem tshem tau, argon arc vuam tuaj yeem raug saws, uas yog, nyob rau hauv tag nrho cov txheej txheem vuam, yog tias lub pas dej molten tab tom yuav ploj mus, tam sim ntawd txo qhov kub ntawm qhov vuam ntawm cov hluav taws xob pov thawj txhuas phaj ntau lawm thiab ua los ntawm cov hlau nplaum. tshuab, thiab tom qab ntawd ua tiav tag nrho cov txheej txheem vuam.Lead particle, tiv thaiv hluav taws xob txhuas phaj, tiv thaiv hluav taws xob txhuas phaj ntau lawm thiab ua, tiv thaiv hluav taws xob txhuas phaj nqi.
2. Thaum welding, txoj kev luv luv arc, txoj kab sib dhos nrawm nrawm thiab sib dhos ua ke yuav tsum tau xaiv kom tau txais lub pas dej me me thiab nws qhov chaw vuam zoo.
3. Txhawm rau tiv thaiv vuam deformation, symmetrical vuam yuav tsum raug xaiv thaum vuam, suav nrog pob tw vuam, ntsug vuam thiab oblique vuam.
Post lub sij hawm: May-25-2023
